An Efficient Format-Preserving Encryption Mode for Practical Domains

查看全文 作　　者：LI [1]Jingwei;LIU [1]Zheli;XU [2]Li;JIA [1]Chunfu

机构地区：[1]College of Information Technical Science, Nankai University,Tianjin 300071, China;[2]School of Mathematics and Computer Science, FujianNormal University, Fuzhou 350007, Fujian, China

出　　处：《Wuhan University Journal of Natural Sciences》索引2012年第17卷第5期,共7页

基　　金：Supported by the National Natural Science Foundation of China(60973141);the Specialized Research Fund for the Doctoral Program of Higher Education of China (20100031110030);the Funds of Key Lab of Fujian Province University Network Security and Cryptology (2011004);the Fundamental Research Funds for the Central Universities 摘　　要：Format-preserving encryption (FPE), which makes sure that ciphertext has the same format as plaintext, has been widely used in protecting sensitive data in a database. Aiming at efficiently solving the FPE problem on a collection of practical domains, we propose the RREM (random reference-based encryption mode), which constructs bijection between the original domain and integer set through distance computation. If an appropriate distance function is predefined, the proposed mode can solve the FPE problem on linear equidistance domain in a more efficient way than previous methods. Furthermore, we make a classification on various types of domains, show the application of RREM in some practical domains, and specify RREM's capability of solving the FPE problem on frequently-used fields in database quite efficiently. 关键词：计算机安全信息安全信息技术安全技术

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An Efficient Format-Preserving Encryption Mode for Practical Domains

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